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1# RUN: llc -mtriple=x86_64 -run-pass none -o - %s | FileCheck %s2# This test ensures that the MIR parser parses the 'implicit' and 'implicit-def'3# register flags correctly.4 5--- |6 7 define i32 @foo(i32 %a) {8 entry:9 %0 = icmp sle i32 %a, 1010 br i1 %0, label %less, label %exit11 12 less:13 ret i32 014 15 exit:16 ret i32 %a17 }18 19 define i1 @implicit_subregister1() {20 entry:21 ret i1 false22 }23 24 define i16 @implicit_subregister2() {25 entry:26 ret i16 027 }28 29...30---31name: foo32body: |33 bb.0.entry:34 successors: %bb.1, %bb.235 ; CHECK: CMP32ri8 $edi, 10, implicit-def $eflags36 ; CHECK-NEXT: JCC_1 %bb.2, 15, implicit $eflags37 CMP32ri8 $edi, 10, implicit-def $eflags38 JCC_1 %bb.2, 15, implicit $eflags39 40 bb.1.less:41 ; CHECK: $eax = MOV32r0 implicit-def $eflags42 $eax = MOV32r0 implicit-def $eflags43 RET64 $eax44 45 bb.2.exit:46 $eax = COPY $edi47 RET64 $eax48...49---50name: implicit_subregister151body: |52 bb.0.entry:53 ; Verify that the implicit register verifier won't report an error on implicit54 ; subregisters.55 ; CHECK-LABEL: name: implicit_subregister156 ; CHECK: dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al57 dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al58 RET64 killed $al59...60---61name: implicit_subregister262body: |63 bb.0.entry:64 ; CHECK-LABEL: name: implicit_subregister265 ; CHECK: dead $r15 = XOR64rr undef $r15, undef $r15, implicit-def dead $eflags, implicit-def $r15w66 dead $r15 = XOR64rr undef $r15, undef $r15, implicit-def dead $eflags, implicit-def $r15w67 RET64 killed $r15w68...69